New PMP Question & Answers with explanation

A company has invested significant capital in a current project. The project involves infrastructure and technology changes that will impact private client data, processing of transactions, and the distribution of goods to end users. Recent regulatory changes have made this project a higher priority for the company. While completing the project, the project manager realizes he needs to decrease project costs. There are concerns that this could impact end user satisfaction and create potential compliance issues. After researching his options, he comes up with the following choices. He will need to communicate the recommended option to the project stakeholders. Which choice would decrease project costs?
Select one
As you review the project results, you notice you have spent us $1,200,000 at the last reporting point. You know the schedule performance index (SPI) is 1.1. Considering you feel you should have spent us $1,300,000 to this point, what are the cost performance index (CPI), and the schedule and cost variances?
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Earned value analysis is the basis for:
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A rough order of magnitude estimate is made during which project management process group?
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As the project progresses, you will engage in a process using aggregation, reserve analysis, and expert judgment. These are tools of which process?
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